Means for securing light socket cups to supporting plates



July 22, 1952 c. D. MGCANN 2,604,580 MEANS FOR SECURING LIGHT SOCKET cuPs T0 SUPPORTING PLATES Filed Oct. 4, 1947 Patented July 22, I952 .7 v 7 21,604,580 MBA-us FonsspUnING nI'GnT's oKEr ours] 'ro-svrronrmernxrns- 3 I Glyde'l). McCann,'Des Moines,- Iwa lipplieationoctoher 4,1941 seriar'utqmssz f The-principal- 0b; of my invention is to provide a means for rigidly securing a light cup bracket in spaced relationship. to a wall or like back .plate.

" A further object'is to provide alight fixture that is strong, easily assembled,"-and'free from rattle during 'it's'usefullifel A still further object ot grny invention is to provide a rigid connecting lin structure'b et'ween the lightlcup and supporting back plate that. is

' ec o nqm al in manufacture, E able inuseland .refl e in peeree a] These and other objects will be apparent to those skilled in the art.

My invention consists in the construction, arrangement and combination of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which:

Fig. l is a side view of my construction in use.

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1.

Fig. 3 is a sectional view taken on line 33 of Fig. 2 and. more fully illustrates my invention.

Fig. 4 is a perspective view of the two parts that make up my connecting and supporting link.

The art of lighting fixtures comprising a cup to hold the light socket, and a back supporting plate is old. The usual method of securin these two members together is by the use of a hollow bracket or tube. The objection to this construction, however, is that the structure is weak and subject to breakage, loosening, or bending during transit and when in use. I have overcome such objections as will hereinafter be appreciated.

Referring to the drawings, I have used the numeral I0 to designate an ordinary light socket holding cup and the numeral II to designate its usual lamp shade or shield. The numeral I2 designates a wall, ceiling, or like supporting back plate. It is to such parts I0 and I2 that I use 4 Claims. (cit-I240 my invention and which I will now describe in detail. The numeral I3 designates a spacing outside collar rin having a front edge I4 and a rear shoulder I5, as shown in Fig. 4. This memher is hollow and on the inner edge of the rear and lower tongue be employed aS'ShOWn in Fig.

4. This member I3 is placed at time of manufacture between the cup I0 and plate I2, with the tongues I6 extending through the usual hole passageway :in the-plate;

The numerali-trzdeslgnate's': a hollow rivet eiitending throug lrithei cup I0 thecoll'ar ring-- [3, and the plate 1215 This hollow rivet has its" outside ciroumferencezsubstantially tha't of the insideicircumference of the collar I3; and if the collar *I'3fiis oblong in cross-section,.thisrnember shouldalsoibei oblong "tti-rne of manufacturesit' nstheeform Fig. 4*. 1 However, it by imachinery: its edge isyrolled out a 7 'd back ori ;the sinner e 'rearaedge roliedrout This last rolling and riveting action carries with it the bending and outward rolling of the tongues It, as shown in Fig. 3. These tongues will therefore be bent and riveted between the inner side of the plate I2 and the outwardly bent rim head of the rivet II. This will rigidly secure the spacing collar I3 to the back plate I2 and further make the entire construction stronger. The hollow rivet will rigidly secure the cup to the back plate with the collar I3 spaced between the cup and back plate. The edges of the collar will engage the outer wall of the cup and the outer wall of the back plate and the riveting of the rivet I! will be so tight as to cause these edges to out into the metal of both the cup and back plate.

This construction makes for a very rigid and strong assembly. If desired, tongues It may be formed on either or both front and rear inner edges of the spacing collar I3. With my device the connection between cup and back plate will plate into the cup socket, through the hollowv rivet. Although I have described my device as particularly designed for light fixtures, obviously it may be used on any device where a. rigid spacing connection is desired.

Some changes may be made in the construction and arrangement of my improved lighting fixture construction without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims, any modified forms of structure or use of mechanical equivalents which may be reasonably included within their scope.

I claim:

1. In combination with a light socket cup and a supporting plate, a link securing means comprising, a hollow rivet extending through the wall of said cup and said plate, a spacing collar surrounding said rivet and between said cup and said plate, and a tongue on said spacing collar having a thickness substantially less than the thickness of said collar for providing a shoulder; said tongue extending through said plate and bent outwardly between the head of said rivet and the-inner side of said plate; said bent up portion of said tongue and said shoulder being parallel and extending at each side of said plate, respectively.

2. In combination with a light socket cup and a supporting plate, a link securing means coniprising, a hollow rivet extending through the wall of said cup and said plate, a spacing collar surrounding said rivet and between said cup and said plate, and a plurality of tongues on said spacing collar each having a thickness less than the thickness of said collar for. providing shoulders; said tongues extending through said plate'and bent outwardly between the head of said rivet and the innerside of said plate, and parallel with said shoulders, respectively.

3. In combination with a lightsocket cup and a supporting plate, a link securing means comprising, a hollow rivet extending through the wall of said cup and saidplate, a spacing collar surrounding said rivet and between said cup and said plate, and a tongue on the inner marginal edge of the plate end of said collar extending. through said plate and bent outwardly between the head of said rivet'and the inner side of said plate; said tongue having a thick ness substantially less than the thickness of said collar for providing a shoulder for engaging the side of said plate opposite from the side of the plate engaged by said bent up portion of said tongue.

4. In a device of the class described, a memher, a second member, a rivet extending through said first and second members, a spacing collar between said first andsecond members, and embracing said rivet, a tongue on one of the end edges of said collar extending into one of said members and bent between the inner side of that member and the head of said rivet; said tongue having a thickness substantially less than the thickness of said collar for providing a shoulder for engaging the side of said member through which said tongue extends at a point on the opposite' side of which the member is engaged by the bent up portion of said tongue.

i D. McC'ANN.

REFERENCES CITED The following references are of record in the file of this patent: v

UNITED STATESPATENTS Number Name a Date 965,206 Marshall July 26, 1910 1,134,133 Hotchkin Apr. 6, 1915 1,591,257 Allen July 6, 1926 2,343,389 Stahl Mar. '7, 1944 

